4. Leases: Schedule of Future Minimum Rental Payments for Operating Leases (Details) - USD ($)	Jul. 31, 2020	Nov. 30, 2019
Details
Operating Leases, Future Minimum Payments, Remainder of Fiscal Year	$ 140,374
Operating Leases, Future Minimum Payments, Due in Two Years	400,504
Operating Leases, Future Minimum Payments, Due in Three Years	318,620
Operating Leases, Future Minimum Payments, Due in Four Years	186,992
Operating Leases, Future Minimum Payments, Due in Five Years	1,955
Operating Leases, Future Minimum Payments, Due Thereafter	0
Operating Lease Liability, Gross	1,048,445
Operating Leases Future Minimum Payments Interest Included In Payments	(113,822)
Operating Lease, Liability	$ 934,623	$ 1,620,000